package src.A_JavaBase;

public class Demo04 {

    /*
    1×1=1
　　1×2=2 2×2=4
　　1×3=3 2×3=6 3×3=9
　　1×4=4 2×4=8 3×4=12 4×4=16
　　1×5=5 2×5=10 3×5=15 4×5=20 5×5=25
　　1×6=6 2×6=12 3×6=18 4×6=24 5×6=30 6×6=36
　　1×7=7 2×7=14 3×7=21 4×7=28 5×7=35 6×7=42 7×7=49
　　1×8=8 2×8=16 3×8=24 4×8=32 5×8=40 6×8=48 7×8=56 8×8=64
　　1×9=9 2×9=18 3×9=27 4×9=36 5×9=45 6×9=54 7×9=63 8×9=72 9×9=81
    * */

    public static void main(String[] args) {
        for (int i = 1; i<=9; i++){
            for (int j = 1; j<=i; j++){
                System.out.print(j+"*"+i+"="+(i*j)+"\t");
            }
            System.out.println();
        }
        System.out.println();
        for (int i = 9; i>=1; i--){
            for (int j = 1; j<=i; j++){
                System.out.print(j+"*"+i+"="+(i*j)+"\t");
            }
            System.out.println();
        }
        System.out.println();
        for(int i = 1; i<=5; i++){
            for (int j = 4; j>=i; j--){
                System.out.print(" ");
            }
            for (int j = 1; j<=i; j++){
                System.out.print("*");
            }
            for (int j = 1; j<i; j++){
                System.out.print("*");
            }
            System.out.println();
        }
        System.out.println();
        for(int i = 1; i<=5; i++){
            for (int j = 1; j<i; j++){
                System.out.print(" ");
            }
            for (int j = 5; j>=i; j--){
                System.out.print("*");
            }
            for (int j = 4; j>=i; j--){
                System.out.print("*");
            }
            System.out.println();
        }
        System.out.println();
        for(int i = 1; i<=5; i++){
            for (int j = 5; j>i; j--){
                System.out.print(" ");
            }
            for (int j = 1; j<=i; j++){
                System.out.print("*");
            }
            for (int j = 1; j<i; j++){
                System.out.print("*");
            }
            System.out.println();
        }
        for(int i = 1; i<=4; i++){
            for (int j = 1; j<=i; j++){
                System.out.print(" ");
            }
            for (int j = 4; j>=i; j--){
                System.out.print("*");
            }
            for (int j = 4; j>i; j--){
                System.out.print("*");
            }
            System.out.println();
        }
    }

}
